Grain-binder



(Model.) 3 Sheets-Sheet 1.

M. G. HUBBARD. GRAIN BINDER.

N0.'25'7,333. Patented May 2,1882.

HQZ v @C (Model.) 3 Sheets-Sheet 2.V

M. G. HUBBARD.

GRAIN BINDER.

lPatented May 2, 1882.

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(Model.) 3 Sheets-Sheet 3. M. G. HUBBARD.

AGRAIN BINDER. Y l No. 257,338. Y Patented May 2,1882.

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UNITED STATES PATENT OFFICE.

MOSES G. HUBBARD, OF NORR'ISTOWN, PENNSYLVANIA.

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 257,333, dated May 2,1882.

Application tiled May 2, 1881." (Model.)

To all whom it may concern:

Be it known that I, MOSES G. H'UBBARD, of Norristown, county ofMontgomery, State of Pennsylvania, have invented certain new and usefulImprovements in Grain-Binders, of which the following is a full, clear,and exact description, reference being had to the accompanying drawings,making part of this speciiication, in which- Figure l represents in sideelevation the binder-arm and rack-standard in proper working relation.Fig. 2 shows the rack-standard in section to show the construction ofthe rack. Fig. 3 represents the binder-arm head enlarged, showing theside adjacent to the rack and carrying the twister-pinion. Fig. 4t is aninner face view of the same, and Fig. 5 is a side view taken from theopposite side to Fig. 3. Fig. Grepresents an inner face view of therackstandard, showing also the binder-head passing through it. Fig. 7 isa section through the rack-standard at right angles to Fig. 2, showingthe construction of the rack and the relation of the wire-guiding sheavethereto. Fig. 8 shows the knife or band-cutter in elevation and inperspective, and Figs. 9 and 10 are plan and sectional views of thetwister-pinion and its cap and bearing-piece.

The presentinvention relates to an im provement in the binder-arm headand rack-standard described in joint application filed by myself, M. G.Hubbard, Jr., and George Heavner, whereby the construction ofsaid partsis greatly simplified and their operation improved; and it consists,tirst, in forming the slot in the binder-head on one side of the centerof the twisterpinion, or in a tangential relation to the journal of saidpinion, whereby it is broughtnearer to the rack actuating the pinion andmore space is given to the point of the head for taking the wire, and inproviding the rack-segment with a flange on the rack side overhangingthe slot in the binder-head for facilitating the movement of the wireinto the retainingnotch in said head, as hereinafter explained.

1t further consists in a novel manner of forming the retaining-notch inthe binder-head and in the arrangementof the same relatively to thepinion, whereby the wire is eft'ectually retained without the aid of amovable jaw or equivalent retaining device.

It further consists in providing the binder- I head with a guidingfriction-wheel and with anges or a shield protecting said wheel forpreventing straw or other material from winding on the hub orjournalthereof, and also for keeping the side of the wheel from coming incontact with the side of the standard or segment.

It further consists in a novel arrangement in the rack-standard of thelatch for holding the wire in position for the head to takeit the secondtime-that is, after it has .seized the wire and passed it around thebundle, as hereinafter explained.

lhe improvements referred to are represented in the position they wouldoccupy applied to the gleaner and binderdescribed in a formerapplication, and will be described as it' applied to such machine, butit will be apparent that their application need not be confined to suchmachine, as they may be used on other constructions of machine forbinding grain.

In the drawings, A represents the sill or frame-bar of the machine 5 B,the rack standard or segment secured thereto; O, the shaft carrying thebinder-arm, and D said arm, said parts being arranged substantially asin the former application referred to, and differing therefrom only inthe details hereinafter described. In the application referred to therack for operatingthetwster-pinion was made continuous from end to end,whereas inthe present construction it is composed of two parts orsections, b b', with an interveningbridge or plane surface, b2, (seeFigs. 2 and 7,) the tirst or short section, b, having a number of teethsufcient to give the twister, after it has taken the first wire, ahalf-revolution to bring it into position to take the second wire intotheslot on the opposite side ofthe pinion. The bridge or plane surfaceb2 then comes into action, and rising just high enough to catch thetooth on the pinion succeeding that last acted upon by the short rack bcauses it and said last-named tooth to slide over the bridge, stoppingthe rotation of th'c pinion until the second wire has been caught by thepinion on its opposite side, as stated, when, the pinion having reachedthe second long section, b', of the rack, it is rotated thereby fortwisting the wire forming the ends of the band and for reuniting theends of the wires from the two spools.

Difficulty has been experienced in making the pinion engage properlywith the rack, from j the fact that the teeth of the latter frequentlyapproach the rack endwise, striking the first` '113, so that it canyield slightly' to the blow by forming it upon the end of a flat spring,b, secured to the rack-standard. The spring is shown secured to theouter face of the standard with the tooth b3 passing through a slot orperforation; but it may be otherwise arranged so long as the tooth isadapted to yield and so insure the proper engagement of the pinion withthe rack. The cam for actuating the knife in the binder-head for cuttingthe band after the ends are twisted is also located on the rack side ofthe standard near the end of the rack, (shown at d, Fig. 2,) and thewire is cut off on this side-an arrangement which in practice is foundto materially reduce the amount of power required for cutting and thelfrictional resistance to the passage of the binder-head as comparedwith locating said cam or cutting; off the wire on the side opposite therack.

The latch E for holding thc second wire in position to be grasped by thebinder-head and forcing it into the twister-pinion and retainingnotch insaid head is also pivoted in the rack side of the standard or segment B,as shown in Fig. 6. The pivoted end of this latch is expanded in width,and is provided with a flat surface at e, which rests in contact with aHat spring,F. (Shown in dotted lines, Fig. 6.) The pivot e is near thelower face of the latch and the flattened heel end e rises mainly abovesaid pivot, the arrangement being such as to offer considerableresistance to the upward movement of the latch from the position shownin Fig. 6, and to facilitate its downward movement for permitting thereturn of the wire after the passage of the binder-head, To furtherinsurethe holding of the wire, as above explained, a second latch orlocking device, Ef, is pivoted on the side of the segment opposite therack (see Fig. l in dotted lines, Fig. 6) and overhangs the swinging endor point of latch E, held in place by a spring, F, resting on a pin onsaid latch, as shown in Fig. l. vBy this arrangement the latch E islocked in vposition until the second wire has properly entered theretaining-notch and`twister-pinionin the binder-head, when a cam-ledge,g, onl the binderhead comes in contact with the swinging end oflatch Eand crowds it out, releasing the latch E and allowing it to rise topermit the passage of the wire with the binder-head. To facilitate thedownward movement of latch E in permittingthe return ofthe wire to itsposition below said latch the heel end of said latch is cut away or hasan inwardly-inclined surface at e2, extending from the flattened heelend e at apoint at or near the horizontal plane of the pivot e to thelower face of the latch, as shown in dotted lines Fig. 6.

The binder-head G, forming the end of the v arm D, above referred to, isrepresented in Figs. 3, 4, and 5, and the twister-pinion and the plug orcap covering the same in Figs. 9 and 10. The head has a socket formed init, opening on its outer face for the reception of the pinion H, whichrests on the bottom wall of said socket, and the plug I is then insertedfor retaining the pinion in place. The form of the pinion employed isshown in Fig. 9, where radial slots are formed between the teeth attheir base, extending within the central longitudinal perforation, I',through the plug I, and the bottom walls of these slots are rounded,giving to the core or hub of the pinion from which the teeth project aspherical or elliptical form, as shown at H. By this construction thepinion is adapted not only to take the wire between any two of itsteeth, but said wire is carried in beyond thejournalsurface of saidpinion, and the rounded face of the retaining-slots not only enables thetwisting to be done in closer proximity to the ends of the pinion, buteifectually obviates the cutting or breaking of the wire upon the sharpangles at the ends ofthe pinion-slots as heretofore constructed. The hubor journal H2 is formed upon one side of the pinion, as shown, and hasits bearing in the plug or cap I at l2; or, if preferred, an annularange may be formed on the plug around the central perforation, and theend of the pinion may be recessed to surround said flange, and so haveits bearing thereon, the rst-named construction being, however,preferred. The side of the head opposite the rack in the rack-standardis recessed to receive a guiding and friction wheel, K,journa1edtherein, the flanges g and g at the sides or edges and the connectingwebor curved flange g2, which coversthe forward face of the wheel and formsa shield therefor, rising high enough to protect the wheel and keep itfrom coming in contact with the adjacent side wall of the rack-segment.These tianges also prevent the straw, through which the head or needlenecessarily passes, from wrapping itself on the axis ofthe wheel, andthe latter insures the smooth, easy move-` ment of the head through therack-segment. rlhe knife or band-cutter L, (see Fig. 3 and IOO detailview, Fig. 8,) instead of working on the B, as above explained. This camis so arranged as to act on the knife, forcing it inward near thecompletion of the twisting movement of x the pinion sufficiently far tocause the rotating pinion to brin g first one wire on one side thereofagainst the knife and to cut the same, and then, by the continuedrotation of the pinion, to bring the other wire on the opposite sideagainst the cutter and to cut the same. By this arrangement the wiresare cut singly i11- stead of both together, as heretofore, and theresistance is thereby reduced over what would be required for cuttingboth wires together or at the same instant.

The slot in the head through which the wires are passed into thetwister-pinion is shown at nz., Fig. 4.. Itis made to incline or curveinward toward the rack side of the segment B, and at'its inner end has aretaining-slot, m, formed at right angles to the main or entering slotm,as shown. This retaining-slotm may be formed, likem, in the head itself;but by preference it is formed over a socket or perforation therein bymeans of and between two shouldered plates, n n', secured to the innerface of the head, as shown. These plates are shouldered, so that whenbrought together in the relation shown the angular retaining-slot isformed between them. The curving or inclinin g of the slot m inwardtoward the rack side of the head, in connection with the overhangingange or ledge B' on the rack-standard, produces lateral tension on thewire pass ing through said slot sufficient to force it laterally intothe retaining-slot m the instant it reaches the latter, and as aconsequence the wire is forced from the end of the enteringslot m,(where it is tangential to the hub or journal of the twister'pinion, asshown by the slot in the plug or cap I, Fig. 9, and which forms a partof the slot m) in toward the center of the pinion and within the circleof its bearing-surface when the retainingslot prevents displacement ofthe wires and holds them up to the action of the twisting-pinion. Bythis con- I struction the necessity for a moving jaw for permitting thepassage of the wire into the pinion and for holding the same therein isob- 2. The binder-head, provided with the entering-slot, terminating inthe retaining-slot at right angles, or nearly so, thereto,in combinationwith the flange on the rack-segment overhanging the entering-slot,substantially as described.

3. The removable shouldered plates, forming the retaining slot or notchin the binder-head, substantially as described.

4. The binder-head, provided with the guiding-wheel, in combination withthe anges or ribs forming a shield thereto and holding it out offrietional contact with the side wall of the rack-segment, substantiallyas described.

'5. The pivoted retaining-latch E, having the flattened heel end e, andthe inclined face e2, terminating in the lower face of said latch,

in combination with the spring F, arranged.

and operating substantially as described.

6. The pendent locking-latch E', provided with the pin or spur, incombination with the at retaining-spring, arranged and operatingsubstantially as described.

MOSES G. HUBBARD.

Witnesses:

H. E GARSED, A. L. GoonwIN.

